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The Generac 3100 psi (gas - cold water) pressure washer is available for purchase today.

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Generac 3100 PSI (Gas - Cold Water) Pressure Washer

(Based on expert analysis, manufacturer ratings and customer reviews)

4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5
179 Reviews
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  • Features
  • Specs
  • 11
    Q&A 
  • 179
    Reviews
  • Articles
  • Shipping
  • Accessories

Grade
Style
Water Pressure
3100
PSI
Water Flow
2.7
GPM
Cleaning Speed
8370
Cleaning Units
Engine
Generac
Need Help? Call Our Pressure Washer Experts.
Powerful Generac 5.5 HP Horizontal Shaft OHV Engine
Easily handles most tasks around the house

High Performance AR Axial Cam Pump
Brass head is more durable than all-aluminum pumps
Easily accessible- no more kneeling to connect hoses

Handy, Manuverable Cart With Spray Gun Holster
Engine & pump are perfectly balanced & easy to move
Large Never-Flat wheels take on varied terrain

Ergonomic Generac Spray Gun With 20" Lance
Soft grip & easy-pull inverted fulcrum trigger reduces fatigue

5 Quick-Click™ Nozzle Tips & 30' M22 Hose
0°, 15°, 25°, 40°, and soap applicator

Two 3/4 Gallon On-Board Detergent Tanks
Keep 2 detergents handy- wash & wax, cleaner & grease cutter, etc

Stabilizing Foot Rest
Holds the unit steady for smoother pull-starting

2 Year Limited Warranty
Protects your investment

Not For Sale In California
Doesn't meet strict CARB emissions standards



Model
  Model Number:6598
 UPC:696471065985
 Manufacturer:Generac
Engine
 Engine Brand:Generac
 Starter:Recoil
 HP/CC5.5 HP/212 cc
 Fuel Tank Size3.2 quarts
Pump
 Pump Brand:AR
 Pump Type:Axial Cam
 Adjustable Pressure:No
 Chemical Injection:Dual Detergent Tank
 Detergent Tank Capacity:.75 gal x2
Housing
 Frame Type:2-Wheel Cart
 Wheels:NeverFlat
Hose
 Hose Storage:Hook
 Hose Length:30 ft
 Hose Material:PVC/Plastic
 Hose Diameter:1/4 Inch
 Hose Connections:M22
Spray Gun
 Spray Gun Connection:M22
 Spray Gun Grade:Residential
 Spray Gun Wand:Single Wand
 Spray Tips:Quick Connect Tips (5)
 Turbo Nozzle:Sold Separately
Overview
 Weight:67.5 Lbs.
 Dimensions:23.3L x 16W x 40.3H
 Mfr Consumer Warranty:2 Years

Need Help? Call Our Pressure Washer Experts.
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  11 Questions
Q: Is there a comparable model that you would recommend over this model?
by Keith Shannon from Maryland on May 26, 2015

A: The unit that is equal in quality, is the Karcher unit model G3050OHC. Karcher makes the pump on the unit and it is one of the best consumer grade units in the industry today. I have attached a link to view that item.

Karcher Unit
by Mike, Product Expert
Q: Is there an extension hose available for this model? What hose would you suggest if I go with a
longer hose instead of the extension hose?

by Steve Lohman from Missouri on April 24, 2015

A: If you need to go with a longer high pressure hose, I would recommend jumping up to a 5/16" diameter hose and using it as a replacement. To extend the length, you would want a stronger more durable hose like the 5/16" hoses. I have attached a link for you to view a 50FT high pressure hose I would recommend for this unit.

50FT High Pressure Hose
by Mike, Product Expert
Q: What is a flywheel brake and what is the purpose of it? does the generac have this brake and the Honda ? I had a Honda washer with a brake on it and I had a lot of different problems with it so im very cautions of buying another
by John T from Florida on September 13, 2014

A: No, this unit does not have a flywheel brake on it. The purpose of that is to control the engine speed. This unit is a great choice for homeowner use. I highly recommend this unit. The pump on the unit is made from AR, and is one of the best axial cam pumps in the industry today.
by Mike, Product Expert
Q: I have a 3100psi Generac model 60242 I purchased from PED. Works great. I have noticed lately that when I tilt the unit back in order to reposition it, it will suddenly quit. Is this the "Oil Alert System" sensing a drop in oil level and shutting down the engine? The unit restarts after a couple of pulls.
by Dave from North Carolina on June 05, 2014

A: It could be the Oil Alert sensor, or an adjustment needed in the carburetor... The good news is this unit comes with a 2 year Factory Warranty from the folks at Generac.

You can use their Service Center Locator to find your local Authorized Repair facilities, or give them a call at (888) 436-3722 x5381.

Please be sure to have the serial number of your pressure washer handy if you call Generac; they usually ask for it. You will need a copy of your invoice for any warranty work- just click on My Account in the upper right corner of our website and follow the prompts to print one out.

If there are several repair locations in your area you may want to call around to see which one has the shortest turn-around time so you get your pressure washer back as quickly as possible.
by Mike, Product Expert
Q: Hi...I see the site sells extended warranties. Who covers these, and what's covered. Also, is it worth it to go beyond the two year Generac offers.
by Brian Warehime from New York on May 29, 2014

A: The Extended warranty is covered by WarrenTech. They will start the day after the manufacture warranty and cover all non wearable items. Things that would not be covered would be items like the hose, gun, wand. They would have you take it to a local service center. I feel the Generac Warranty is great. However, if you would like extra time after that it is available for purchase.
by Mike, Product Expert
Q: I am looking for recommendation on accessories needed for the Generac 6598 to easily clean siding and gutters on a large 2 story house.
Thanks.

by Jared from Florida on May 08, 2014

A: I definitely recommend a telescoping wand and gutter cleaner attachment for your application. If you would like to spray detergent through the telescoping wand you will need to go with an aluminum one. I have included link to the telescoping wand, gutter cleaner, adapter needed to attach to your high pressure hose, and the detergent I recommend.

Telescoping Wand

Gutter Cleaner attachment

Adapter

Detergent
by Mike, Product Expert
Q: I'm buying a generac gas model# 6598 from you guys and am looking at MTM hydrojet turbonozzle to go with it.What size orifice should I get? We have a two story home (30' to gable ends) will MTM Hydro long-range detergent foamer work?
by Bruce E Lawrence from Maine on April 17, 2014

A: You should get a 3.0 Orifice Turbo Nozzle. Turbo Nozzles are meant to increase cleaning speed and efficiency, not for long distances. I have attached a link for you.

3.0 Orifice Turbo Nozzle

For your two story home and gables I would go with model 100145. This product allows you to reach up to 3 stories high. I have included a link to this as well.

Model 100145

Both of these product will quick connect on to the end of your lance where the colored spray tips usually go.
by Mike, Product Expert
Q: Will the Generac 6598 connect to a foam cannon like the MTM Hydro without needing any additional hardware?
by Doug from Rhode Island on April 15, 2014

A: Yes, you can purchase the MTM foamer model 14.0263. This has a fitting on it so that it quick connects into where your colored spray tips usually go, so no additional hardware is needed. I love this foamer!

MTM Foamer
by Mike, Product Expert
Q: What is the pump made out of?
by Zach from Minnesota on April 14, 2014

A: This unit has an AR axial cam pump with a brass head on it. It is a step above the rest in it's category. The brass head dissipates heat more effectively, therefore increasing the life of the pump.
by Mike, Product Expert
Q: Is there a telescoping spray wand available for the
Generac Model 6598?

by Carmen Fontana from Delaware on April 13, 2014

A: Yes, if you would like to be able to dispense detergent I recommend the 24' Aluminum Telescoping Wand. I have also included the adapter you will need to connect this product to your high pressure hose.


24' Aluminum Telescoping Wand

Adapter
by Mike, Product Expert
Q: If you go to Lowes, they still carry the model 6024. You show that model as being disconntinued. The 6598 seems to match up with the 6024, spec for spec. Is there any difference? Why wouldn't Lowes carry the 6598?
by Mark from Connecticut on March 19, 2014

A: The 6024 is the old model number. The new model number is the 6598. It has all the same components as the 6024, just different colors to make it more appealing.
by Mike, Product Expert
Generac 6598 Reviews & Ratings
Write Review
Overall Rating
Features
4/5
Quality
5/5
Performance
5/5
Value
5/5
Overall
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5
Pros
Easy To Use (53)
I'd Buy It Again (34)
Price (31)
Exceeded Expectations (21)
Easy To Store (21)
Cons
Low Quality (8)
Bad Instructions (5)
Durability (4)
Unreliable (4)
None (3)
92% of respondents would recommend this product to a friend
179 Reviews  Sort by 
 
Mike, the Pressure Washer Expert
Pressure Washer Expert

Product Expert
Total Reviews
120 Reviews
Total Helpful Votes
3939 Helpful Votes
Pressure Washers Direct Recommended

Given the oversized 212cc Generac brand engine and the durable AR brand axial cam pump, this model is great choice for any homeowner looking to purchase a very good quality pressure washer without putting a large hole in their wallet.

The frame on this unit, like all of the other Generac pressure washers, is a very well thought out design with the consumer in mind. It's balanced and easy to maneuver with 2 easily accessible detergent tanks at the bottom. This model has a vertical frame... more
Mike Recommends This Model
Was this review helpful?
44760
John C.
Morganton, NC
Purchased from Pressure Washers Direct
Purchased 4/4/15
Total Helpful Votes
18 Helpful Votes
Most Helpful Positive Review
REVIEWED
APR.
09
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Prior Reviews Predict Your Experience
Very fast shipping. My Generac 6598 came in 4 days. I ordered a Surface Cleaner the same day and I have no idea what the status is, but I am waiting on it. I ordered the ultimate quick connect today. I highly recommend getting these two accessories.

I used my pressure washer for the past two days and I will give you my experience so far.

Set up was easy but my gas cap, like other reviewers, came broken. Luckily, the gas cap has a metal cap that is molded into a plastic outer... more
Pros: Easy To Use, I'd Buy It Again, Price, Easy To Store
Cons: Packaging, Needs Protection On The Top Of The Box
John Recommends This Generac Product
Mike, the Pressure Washer Expert
Product Expert
John,
Thank you so much for sharing such a great review. This kind of feedback is extremely helpful to other shoppers, and we all really appreciate you taking the time to write it.

Best wishes, and have a great spring.
more
Manufacturer Response
Brand Rep
John,
Thank you for providing us with your highly-detailed review. Your input not only helps future shoppers, but also allows us to review our products and make adjustments and/or changes where we can. We appreciated your constructive feedback, and would like to encourage you to contact us directly at 888-GENERAC (436-3722) if there is something that we can help you with in the future.
more
Was this review helpful?
184
Liz M.
Memphis, TN
Purchased from Pressure Washers Direct
Purchased 10/28/14
Most Helpful Critical Review
REVIEWED
JUL.
11
2015
1 out of 51 out of 51 out of 51 out of 51 out of 5
Zero Stars, Complete Waste Of Money, Time, Effort ...
Although we purchased our 3100 at the end of 2014, we only took it out of the box when we needed to use it, at the end of May 2015. The unit would not start, the handle fell of and my husband actually bruised his thumb on kick-back. We asked a friend (who owns every conceivable type of equipment and is very savvy) to give it a try, and he could not get it started either.

I called Pressure Washers Direct back in May to report this issue on this brand-new, never used machine, but was referred... more
Cons: Low Quality, Unreliable, Has Never Worked Even After Repair
Mike, the Pressure Washer Expert
Product Expert
Liz,
I apologize for the issues you are having. First, I would recommend calling the service center back and let them know how you feel about their quality of work. I would then recommend giving the folks at Generac a call to let them know what happened.

They can be reached at 888-436-3722. Also, you can call me directly at 800-710-7499 and give me the service center information and I will get it to Generac. The unit has a full 2 year warranty and there should be no reason that they are unable to service the unit under warranty.
more
Manufacturer Response
Brand Rep
Liz,
We are sorry to learn of your experience with this particular unit. As PED has alluded, we would recommend, please contact us directly at 888-GENERAC (436-3722) with the serial number of your personal unit and the name of the independent authorized service provider that you had been working with. Once we have been contacted with this pertinent information, we should be able to expedite the process of getting your generator operating appropriately. We apologize for this experience, but look forward to corresponding with you in the near future regarding the servicing of your unit.
more
Was this review helpful?
10
Carol P.
North Aurora, IL
Purchased from Pressure Washers Direct
Purchased 7/7/15
REVIEWED
AUG.
03
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Generac Pressure Washer
My husband finally got to use the pressure washer and it works great. The area he cleaned was caked with mud and also some areas of green moss or mold. Everything came off and it's never been so clean!
Carol Recommends This Generac Product
Was this review helpful?
10
Jerry B.
Canton, OH
Purchased from Pressure Washers Direct
Purchased 5/15/15
REVIEWED
JUL.
29
2015
4 out of 54 out of 54 out of 54 out of 54 out of 5
Wash Review
Nice washer but would be better with rubber wheels & a better mulffer. Does a great job, would buy again.
Jerry Recommends This Generac Product
Was this review helpful?
10
Jeffrey C.
Wayne, PA
Purchased from Pressure Washers Direct
Purchased 7/10/15
REVIEWED
JUL.
27
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
So Far, Great
Started right up, plenty of power. Wheels on the cheap side, but they function ok. The unit is louder than others I have had, but ear protection is necessary for any of them. Very satisfied so far.
Jeffrey Recommends This Generac Product
Was this review helpful?
10
Tom E.
Chanute, KS
Purchased from Pressure Washers Direct
Purchased 6/30/15
REVIEWED
JUL.
24
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Tom
Starts on the first pull and has all of the power I need to clean my car, truck, patio, and sidewalks.
Tom Recommends This Generac Product
Was this review helpful?
10
Mark H.
Colorado Springs, CO
Purchased from Pressure Washers Direct
Purchased 7/2/15
REVIEWED
JUL.
23
2015
3 out of 53 out of 53 out of 53 out of 53 out of 5
Not Very Impressed
I received the pressure washer, assembled it, added the proper amount of oil, fueled it up with premium fuel, connected the hose and wand, connected the water supply and fired it up on the second pull. I was initially pleased, but 5 minutes later it died. I've not been able to run it longer than 5 minutes without it suddenly dying.

I called customer service and they gave me four warranty service companies to take it to. I certainly did not expect to have to take it in for warranty work with... more
Manufacturer Response
Brand Rep
Mark,
We are sorry to learn of the issues that you have experienced with your residential grade pressure washer. However, we are glad to know that you have contacted an independent authorized service provider for the diagnostic and servicing work that your unit currently requires. If you would like to follow-up on the status of the services provided to your personal unit, we would recommend contacting your chosen service provider. Moreover, if you would like to discuss these issues with us in further detail, or if you would like to inquire about the warranty status of your personal unit, please do not hesitate to contact us directly at 888-GENERAC (436-3722) with the serial number of your personal unit. We do apologize for any frustration that this unfortunate scenario may have caused.
more
Was this review helpful?
10
Rosalinda G.
Houston, TX
Purchased from Pressure Washers Direct
Purchased 6/29/15
REVIEWED
JUL.
21
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Everyone Is Happy!
My son-in-law asked me to order a pressure washer with lots of power at a reasonable price. He insists on the best, so I was glad to hear that he absolutely loves this model. My 15-year-old grandson is earning extra money washing the neighbors' driveways, so everyone is happy with this purchase. Thank you.
Rosalinda Recommends This Generac Product
Was this review helpful?
10
Robert B.
Gainesville, GA
Purchased from Pressure Washers Direct
Purchased 6/1/15
REVIEWED
JUL.
15
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Awsome
Very happy etc !!! I also recommend getting a surface cleaner too !
Robert Recommends This Generac Product
Was this review helpful?
00
Raul M.
Converse, TX
Purchased from Pressure Washers Direct
Purchased 6/26/15
REVIEWED
JUL.
22
2015
5 out of 55 out of 55 out of 55 out of 55 out of 5
Works Great
My 6598 pressure washer started right up, and it works great. Very powerful for home use. Brother-in-Law wants one now!
Raul Recommends This Generac Product
Was this review helpful?
01
Roland S.
Wilmington, VT
Purchased from Pressure Washers Direct
Purchased 9/7/14
REVIEWED
SEP.
29
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Awesome!!
I owned a Karcher PW for a few years and it finally died, had no patience to repair it. In my search, I checked out many websites with several units with their reviews. The Generac 3100 kept coming with high ratings having great quality at an awesome price for what you were getting.

After it's first use I was in love with this machine, it tackled everything that I threw at it. This is by far one of the best purchase decisions made in a long time.

I would highly recommend purchasing this... more
Roland Recommends This Generac Product
Roland's Experience With Pressure Washers Direct
Web Site
5/5

Service
5/5

Shipping
5/5
"Online order went very smooth and shipping was very fast!!"
 more
Was this review helpful?
50
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